No-shank pipe



'March 25 1941. u... SILBER NO-SHANK PIPE LOUIS SILBER,

Filed Aug. 23, 193e fia 1N VENTOR.

ATTORNEYS Patented Mar. 25, 1941 UNITED STATES PATENT OFFICE 4 Claims.

This invention, as indicated, relates to a noshank pipe More particularly, it comprises a smoking pip-e foi substantially conventional form as viewed. exteriorly, but having a bowl and smoke chamber and stem of a wholly different character from conventional pipe structures. Heretofore it been proposed to form pipe structures adapted to be separated into several pants, or having cleaning openings and insert devices `for improving the performance ci' the device. In most of said lstructures complications are introduced which makes it more diicult to keep fthe device in good condition, yand access to the parts is frequently most f iflicult. The present invention has in View obviating of these disadvantages, and the provision of a pipe structure formed of few parts and having high capaci-ty for/insuring a cool sweet smoke at all times, as Iwell yas affording unusual opportunities for maintaining the 'device in fully cleansed condition.

The principal object oi the invention is to piovide `a tobacco pipe for smokers formed of parts cooperating to make an anticle of good. appear- :ance and performance 'and to afford ready access tor cleansing purposes.

Another object of the invention is to provide a pipe structure wherein the stem and base of the bowl section [are formed as ya unitary structure within which the bowl section proper is inter-engaged, and from which it readily removable.

Another object of the invention is 'to provide a pipe and stem section 'and a pipe bowl section, each formed with means to detachably engage, for ready inspection and cleansing, as well as for ease of manufacture.

Another object of the invention is to provide a `pipe structure wherein the bowl section may be formed of selected material, such las French 'criar forming the entire combustion chamber, Iand wherein the remaining portions oi the pipe structure may be formed of other material adapted to be lfabricated and assembled with the bowl J structure :at a minimum of expense for material and lab-or.

Another object oi the invention is to `form a pipe stiuoture having intermediate the bowl and the combined stem and base sections 'a smoking chamber or condensing passageway wherein suitable materials may be utilized Ito improve the condensing action of such portion of the pipe structure.

Another object of the invention is to form a pipe structure having intermediate :the bowl and the combined stem and base sections a metaliined condensing chamber, the lower part of which is bowl-shaped to act as a reservoir for moisture and condensed tobacco extracts, such as nicotine and the like.

Another object of the invention is to form a pipe structure eliminating entirely the wooden shank portion of the conventional smoking pipe.

Another object of the invention is to form a pipe structure so Idesigned that the moisture and condense-d tobacco extracts come in cont-act with only metal or other non-'absorbent sur-faces.

A further object of the invention is Ito provide a pipe formed by la minimum of pants and adapted for easy assembly, low cost ci manufacture iand improved performance.

`Other and .further objects of the invention will appear in the course of the following description.

To the accomplishment of the .foregoing and related ends, said invention, then, consists of the means .and structure `hereinafter f-ully described and .panticularly pointed out in the claims, the annexed drawing :and the `following description setting forth in Idetail certain means and structures embodying the invention, such disclosed means fand structures constituting, however, but one of various forms in which the 'principle of the invention may be used.

In said annexed drawing:

Fig. 1 is ya central vertical sectional View of the bowl, base and a portion of the stem struckture of a pipe embodying the principles of the invention as seen along the lines I-l shown in Fig. 2 looking in the ydirection of the arrows;

Fig. 2 is a plan view partly in section of the structure shown in Fig. 1 as seen lalong the lines 2-2 looking in the ydirection of the arrows; and

Fig. 3 is fa side elevation of the fully assembled pipe struct-ure.

As is clearly shown fin the drawing, the pipe comprises `a bowl section I formed of suitable material, such as French briar, having la bowl 2 of conventional shape with an opening 3 centrally of the base thereof and having its lower portion formed with an extension larea 4 of reduced cross section. A cup-shaped liner member 5, preferably of sheet metal is firmly secured to the under face of the bowl section, such cupshaped section preferably having an upward tubular extension lt serving as a liner for the raperture 3. The cup-shaped lmember at its upper side has aan extension yflange 'l which terminates flush with the curved outer surface 8 of the bowl section. The cup-shaped member on its reduced side ,pontion is provided with screw-threads `.9 adapt-ed to inter-engage with similar screwthreads `lll formed on inner sides of the recessed liner member l2, preferably of metal, which, in conjunction with the cup-shaped liner member 5, also preferably formed of metall, provi-des a condensing chamber `I3 closed throughout, excepting' for the aperture 3 leading to the bowl and another aperture il!A leading through the stem, the latter aperture provi-ding the main smoke passageway of the pipe. The recessed member `I'2 has integrally secured thereto an extension I5 at one side thereof which engages a recess lr6 `formed in the portion of the stem where it connects with [the base .portion of the bowl section of the pipe. This extension member I5 is apertured in alinement with the aperture through the stem and through the recessed member I2 so 'as to provide a continuous smoke passageway to the mouth piece II at the end of the stem |8. The extension member I5 serves to strengthen the pipe structure as a whole at its weakest point where the bowl and stem sections meet, 'and the metal of the extension also serves to assist in the heat 1dissipation from the smoke passing from Ithe condensing chamber into the stem. The recessed member I2 a-nd its extension I5 are securely anchored within the base member i9 serving :as the bowl support, such base member I9 preferably comprising an integral structure with the stem and 'preferably being formed of some suitable plastic material, such as Bakelite or the like. Various ways of securing the recessed member I2 in the Bakelite base may be provided, but that illustrated comprises the provision of one or more circumferential outstanding ribs 2l formed on the loulter surface of the recessed member I2 adjacent its upper edge. The extension member I5 also serves as a means for securely anchoring the recessed member I2 against displacement inasmuch as it is rmly seated within the elongated recess I6 heretofore mentioned.

It Wil'l be noted that the `pipe structure :ab-ove described readily lends itself to low cost production inasmuch as the Bakelite stem .and bowl base I8, I9, may be readily cast about the recessed member `l2 and its extension I5. The formation cf the recessed member I.2 and its extension i5, yas well yas the cup-shaped member 5 involves no difficult production problems, and the screw-threaded joint between sai-d parts permits easy access to the entire interior surface of the condensing chamber of the pipe.

It will be noted further that the pipe structure as described entirely eliminates the wooden shank portion found in the conventional pipe. This means that the smoke, instead of condensing in :the wooden shank and becoming absorbed therein, condenses in a metal-lined chamber which is non-absorbent. As a lresult the foul odor and bitterness, so often .fou-nd in a pipe, is permanently prevented, :and Ithe pipe will always provide a sweet, cool and dry smoke.

Where pipes are constructed 4of French b-riar it `is usual vto form the bowl portion of selected burled and knotted sections of Erench briar which is limited in supply and relatively expensive. Flor bowls of the type of construction herein described the amount of French briar used is considerably less in total extent :than that required for c-onventional pip-e structures, and yet the full tobacco chamber of the pipe is provided, and the exterior finish of the French briar section will be fully in evidence to as great an extent as with conventional pipes. The flanges 'I on the cupshaped member 5 terminate flush with the exterior contour of the lower bowl portion of the pipe :and may be finished so as .to present a c-ircumieren'tiai area of silver, gold or -any desired finish at the juncture point of the combined stem and base section with the bowl section.

It will be obvious that some of the advantages of the structure may be obtained by utilizing certain features of the invention without adopting other elements of the structure shown.

Qther modes of applying the principle of my invention may be yemployed instead of those explained, `change being made as regards the structure and means herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

1. A structure of the character described having in combination a bowl section, an integral base and stem section, means for interlockingly engaging said sections, said means providing an intermediate spaced area forming a condensing chamber, and a smoke passageway of substantially uniform diameter throughout its length extending through said combined base and stem section along la straight line substantially in the plane of the under face of the bowl section and entering the condensing chamber at a point of maximum elevation `above the base of said condensing chamber.

2. A structure of the character described having in combination a bowl sec-tion, an integral base and stem section, a metal liner element secured to the under side of the bowl section, a recessed metal liner element secured in the upper side of the base portion of the combined stem and base section, means for securing said liner elements in spaced relation to each other to provide an intermediate condensing chamber, and a smoke passageway of substantially uniform diameter throughout its length extending lthrough said combined base :and stem section along a straight fline substantially in the plane oi the under face of the bowl section and entering the condensing chamber at a point of maximum el-evation `above the base `of said condensing chamber.

3. A structure oi the character described having in combination a bowl section, lan integral base and stem section, a metal liner element secured to the under side of the bowl section, a recessed metal liner element secured in the upper side of the base portion of the combined stem an-d base section, means for securing sai-d liner elements in spaced relation t0 each other to provide `an intermediate condensing chamber, an extension member on said bowl liner member leading through :an aperture into the bowl from said smoke chamber, and an extension member on said base liner member leading into a recess in the stem of said structure.

4. A pipe structure having in Icombination a combined base and stem section formed of plastic material engaged at its enlarged base portion about a metal cup-shaped linea having screw threads at its upper inner portion and an apertured extension projecting laxially into said stem section, `a separate bowl section, means for uniting said bowl section with said base and stem section, said means -comprising a thin sheet metal liner projecting from the un-der side of the bowl section and having .a screw-threaded portion to engage the threads of said cup-shaped liner, said `liners being spaced from each other to provide a condensation ch-amber for moisture, and having passageways connecting with the bowl and stem sections of the pipe, respectively.

LOUIS SILBER. 

